Home / 1,277,791.20-1,763,596.80-768,657.60

Finding the Fourth Proportional to 1,277,791.20, 1,763,596.80 and 768,657.60

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Solution

The fourth proportional to 1,277,791.20, 1,763,596.80 and 768,657.60 is: 1,060,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,791.20 : 1,763,596.80 = 768,657.60 : x
  2. Step 2: Convert to fraction form
    1,277,791.20/1,763,596.80 = 768,657.60/x
  3. Step 3: Cross multiply
    1,277,791.20x = 1,763,596.80 × 768,657.60
  4. Step 4: Simplify right side
    1,277,791.20x = 1,355,602,083,655.68
  5. Step 5: Solve for x
    x = 1,355,602,083,655.68/1,277,791.20
  6. Step 6: Final answer
    x = 1,060,894.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.